DE102010021379A1 - Clamping node-element for use in suspension pulley training device to hold and position sudden rising traction load at main rope in e.g. sports area, has elastic element transmitting forces, where upper end of element is guided via loop - Google Patents

Abstract

The node-element (1) has an elongated, flexible or elastic element (10) i.e. band, transmitting traction forces and comprising a loop (11a) at an end, where the node element is moved at an elongated holder unit i.e. main rope. The elastic element is wound around the holder unit from bottom to top in a helical manner for formation of winding at the holder unit. An upper end of the elastic element is wound around the winding from top to bottom in a helical manner for formation of another winding. The upper end of the element with the loop is guided via another loop (11b).

Description

The present invention relates to an industrial manufacturing, on an elongate holding device (eg., On a main rope) slidable clamping node for the safe recording and positioning of static loads and also suddenly occurring tensile loads. The clamping node consists of an elongated, pliable, elastic element (hereinafter also referred to as a clamping node element) for transmitting tensile forces, preferably a band. The invention finds application in particular in the fields of sports, fitness, mountain sports, sailing and work safety.

State of the art

Numerous clamping nodes are already known from the prior art in these areas. In the area of relocatable nodes, the Prusik node as well as the FB band clamp node should be mentioned.

The disadvantage of the Prusik knot is that it requires a special relationship between the knot rope and the take-up rope. The knot strength strongly depends on the difference of the rope diameter and the material and the surface condition of the two ropes. The knot becomes fixed at a difference in diameter of 1 to 1.5 to 1 to 5; but the bigger the difference, the weaker is the thin line. Only by a smaller rope diameter, with which the knot is tied around the standing rope, a good clamping (wedge) effect occurs. Due to the punctual load, the knot is also not gentle on materials.

The disadvantage of the FB-Bandklemmknotens is that this is industrially difficult to manufacture, as already results in a slight deviation in the winding to greatly reduced holding force and thus in a possible slippage of the knot. Depending on the design and use, even a correctly delivered knot can tilt or twist. This also leads to a greatly reduced holding power. The user must be well informed about the structure and effect of the FB-Bandklemmknoten in order to use it safely.

Presentation of the invention

The present invention is based on the object to provide a terminal node, which can be manufactured error-free and industrially with low material costs. It should also be easy to use by inexperienced users. The knot must hold loads in all directions of pull and should be as material-friendly as possible. It must be easy to move on the stationary rope and work with as many material combinations and diameters as possible. He should under all conditions show a secure clamping action and correct himself as possible.

According to the invention the above object is achieved with the features of claim 1. Advantageous embodiments of the clamping node according to the invention are specified in subclaims.

• a) das längliche, biegeschlaffe, elastische Element weist an zumindest einem Ende eine Schlaufe auf; b) das Element ist zur Bildung einer ersten Wicklung an der Halteeinrichtung von unten nach oben spiralförmig um diese gewickelt; c) das Element ist zur Bildung einer zweiten Wicklung mit seinem oberen Ende spiralförmig von oben nach unten um die erste Wicklung gewickelt; d) das obere Ende des Elements ist mit seiner Schlaufe durch die untere Schlaufe geführt.

Thereafter, a terminal node of the type mentioned above is characterized by the following features:

• a) the elongated, pliable elastic element has a loop on at least one end; b) the element is spirally wound therearound to form a first winding on the holding device from bottom to top; c) the element is wound with its upper end spirally from top to bottom around the first winding to form a second winding; d) the upper end of the element is guided with its loop through the lower loop.

The invention solves the tasks with minimal use of materials. Due to the innovative design of a preferably 20 mm wide sling and its construction on the stationary rope, load levels of up to 6.5 KN are achieved. Also much higher loads are possible, here only additional sewing points must be set.

The knot is very easy and safe to use, because it corrects a possible malposition automatically under load. Unlike the FB-Bandklemmknoten no double loop is used - so the node is permanently in shape and there is no jamming or twisting at the node. Unlike the Prusik knot, this invention can be used with many different diameter combinations and rope and knot loop. Due to the distributed load due to the wide loop and the wide distribution of the clamping node on the rope, this invention is particularly gentle on materials.

The invention can be, if no load is applied to the node, easily solve and adjust. Due to the low use of material and the large loop opening, the terminal node releases itself after the end of the load by itself far enough to move him.

If there is a lot of load on the knot and it has become extremely tight, it is enough to pull one of the diagonal windings slightly upwards. This loosens the knot and makes it easy to adjust.

Brief description of the drawings

Other objects, features, advantages and applications of the terminal node will become apparent from the following description of an embodiment with reference to the drawings.

In the drawings show

1 the clamping node element 10 in a side view;

2 the clamping node element 10 in the plan view;

3 the exemplary structure of the terminal node 1 on a rope 2 with a first winding 3 ;

4a . 4b and 4c the exemplary structure of the terminal node 1 until the completion of the second winding 4 ;

5 and 6 Application examples of the clamping node 1 ,

Embodiment of the invention

First in 1 and 2 the structure of the clamping node element 10 shown in a preferred embodiment. This structure can be modified depending on the application. It can z. B. wider / longer loops or larger loops 11a ; 11b be used.

In 3 becomes the exemplary structure of the clamping node 1 on a rope 2 with a first winding 3 shown.

In 4a and 4b will be the exemplary structure until the completion of the second winding 4 shown.

Of course, variations in the number of turns to form the windings 3 ; 4 possible, which nevertheless comply with the principle of this invention.

In 5 becomes the application of the terminal node 1 shown in practice using the example of aeroSling training (sports equipment).

The clamping node according to the invention is not limited in its execution to the above-mentioned preferred embodiments. Rather, a variety of design variations are possible, which make use of the solution shown even with fundamentally different type of execution.

LIST OF REFERENCE NUMBERS

1

terminal nodes

2

Holding means / wire

3

first winding

4

second winding

10

elastic clamping knot element / band

11a; 11b

loops

Claims (1)

On an elongated holding device ( 2 ) movable clamping knot ( 1 ) for safely picking up and positioning static loads as well as sudden tensile loads, consisting of an elongated, limp, elastic element ( 10 ) for the transmission of tensile forces, characterized by the following features: a) the elongated, pliable elastic element ( 10 ) has at least one end of a loop ( 11a ) on; b) the element ( 10 ) is to form a first winding ( 3 ) on the holding device ( 2 ) spirally wound from below to above; c) the element ( 10 ) is to form a second winding ( 4 ) with its upper end spirally from top to bottom around the first winding ( 3 wrapped); d) the upper end of the element ( 10 ) is with its loop ( 11a ) through the lower loop ( 11b ) guided.

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